<?php 
/* $Id$ */
/*
	services_dhcp_edit.php
	part of m0n0wall (http://m0n0.ch/wall)
	
	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
	All rights reserved.
	
	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions are met:
	
	1. Redistributions of source code must retain the above copyright notice,
	   this list of conditions and the following disclaimer.
	
	2. Redistributions in binary form must reproduce the above copyright
	   notice, this list of conditions and the following disclaimer in the
	   documentation and/or other materials provided with the distribution.
	
	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	POSSIBILITY OF SUCH DAMAGE.
*/

##|+PRIV
##|*IDENT=page-services-dhcpserver-editstaticmapping
##|*NAME=Services: DHCP Server : Edit static mapping page
##|*DESCR=Allow access to the 'Services: DHCP Server : Edit static mapping' page.
##|*MATCH=services_dhcp_edit.php*
##|-PRIV

require_once('globals.inc');

if(!$g['services_dhcp_server_enable']) {
	Header("Location: /");
	exit;
}

require("guiconfig.inc");

$if = $_GET['if'];
if ($_POST['if'])
	$if = $_POST['if'];
	
if (!$if) {
	header("Location: services_dhcp.php");
	exit;
}

if (!is_array($config['dhcpd'][$if]['staticmap'])) {
	$config['dhcpd'][$if]['staticmap'] = array();
}

$static_map_enabled=isset($config['dhcpd'][$if]['staticarp']);

staticmaps_sort($if);
$a_maps = &$config['dhcpd'][$if]['staticmap'];
$ifcfgip = get_interface_ip($if);
$ifcfgsn = get_interface_subnet($if);
$ifcfgdescr = convert_friendly_interface_to_friendly_descr($if);

$id = $_GET['id'];
if (isset($_POST['id']))
	$id = $_POST['id'];

if (isset($id) && $a_maps[$id]) {
        $pconfig['mac'] = $a_maps[$id]['mac'];
		$pconfig['hostname'] = $a_maps[$id]['hostname'];
        $pconfig['ipaddr'] = $a_maps[$id]['ipaddr'];
        $pconfig['descr'] = $a_maps[$id]['descr'];
} else {
        $pconfig['mac'] = $_GET['mac'];
		$pconfig['hostname'] = $_GET['hostname'];
        $pconfig['descr'] = $_GET['descr'];
}

if ($_POST) {

	unset($input_errors);
	$pconfig = $_POST;

	/* input validation */
	$reqdfields = explode(" ", "mac");
	$reqdfieldsn = explode(",", "MAC地址");
	
	do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);

	/* normalize MAC addresses - lowercase and convert Windows-ized hyphenated MACs to colon delimited */
	$_POST['mac'] = strtolower(str_replace("-", ":", $_POST['mac']));
	
	if (($_POST['host'] && !is_hostname($_POST['host']))) {
		$input_errors[] = "请输入有效的主机名。";
	}
	if (($_POST['ipaddr'] && !is_ipaddr($_POST['ipaddr']))) {
		$input_errors[] = "请输入有效的IP地址。";
	}
	if (($_POST['mac'] && !is_macaddr($_POST['mac']))) {
		$input_errors[] = "请输入有效的MAC地址。";
	}
	if($static_map_enabled && !$_POST['ipaddr']) {
		$input_errors[] = "静态绑定已启用，请填写IP地址。";
	}
	
	/* check for overlaps */
	foreach ($a_maps as $mapent) {
		if (isset($id) && ($a_maps[$id]) && ($a_maps[$id] === $mapent))
			continue;

		if ((($mapent['hostname'] == $_POST['hostname']) && $mapent['hostname'])  || ($mapent['mac'] == $_POST['mac'])) {
			$input_errors[] = "主机名，IP地址或MAC地址已存在。";
			break;
		}
	}
		
	/* make sure it's not within the dynamic subnet */
	if ($_POST['ipaddr']) {
		$dynsubnet_start = ip2long($config['dhcpd'][$if]['range']['from']);
		$dynsubnet_end = ip2long($config['dhcpd'][$if]['range']['to']);
		$lansubnet_start = (ip2long($ifcfgip) & gen_subnet_mask_long($ifcfgsn));
		$lansubnet_end = (ip2long($ifcfgip) | (~gen_subnet_mask_long($ifcfgsn)));
		if ((ip2long($_POST['ipaddr']) < $lansubnet_start) ||
			(ip2long($_POST['ipaddr']) > $lansubnet_end)) {
			$input_errors[] = "IP地址必须在 {$ifcfgdescr} 的子网中。";
		}
	}

	if (!$input_errors) {
		$mapent = array();
		$mapent['mac'] = $_POST['mac'];
		$mapent['ipaddr'] = $_POST['ipaddr'];
		$mapent['hostname'] = $_POST['hostname'];
		$mapent['descr'] = $_POST['descr'];

		if (isset($id) && $a_maps[$id])
			$a_maps[$id] = $mapent;
		else
			$a_maps[] = $mapent;
		
		write_config();

		if(isset($config['dhcpd'][$if]['enable'])) {
			touch($d_staticmapsdirty_path);
			if (isset($config['dnsmasq']['regdhcpstatic']))	
				touch($d_hostsdirty_path);
		}

		header("Location: services_dhcp.php?if={$if}");
		exit;
	}
}

$pgtitle = array("网络设置","DHCP服务","静态绑定编辑");
$pgmenu = array('network', '/services_dhcp.php');
include("head.inc");

?>

<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
<?php include("fbegin.inc"); ?>
<?php if ($input_errors) print_input_errors($input_errors); ?>
            <form action="services_dhcp_edit.php" method="post" name="iform" id="iform">
              <table width="100%" border="0" cellpadding="6" cellspacing="0">
				<tr>
					<td colspan="2" valign="top" class="listtopic">静态DHCP绑定</td>
				</tr>	
                <tr> 
                  <td width="22%" valign="top" class="vncellreq">MAC地址</td>
                  <td width="78%" class="vtable"> 
                    <input name="mac" type="text" class="formfld unknown" id="mac" size="30" value="<?=htmlspecialchars($pconfig['mac']);?>">
		    <?php
			$ip = getenv('REMOTE_ADDR');
			$mac = `/usr/sbin/arp -an | grep {$ip} | cut -d" " -f4`;
			$mac = str_replace("\n","",$mac);
		    ?>
		    <a OnClick="document.forms[0].mac.value='<?=$mac?>';" href="#">使用我的MAC地址</a>   		    
                    <br>
                    <span class="vexpl">按下列格式输入MAC地址 
                    xx:xx:xx:xx:xx:xx</span></td>
                </tr>
                <tr> 
                  <td width="22%" valign="top" class="vncell">IP地址</td>
                  <td width="78%" class="vtable"> 
                    <input name="ipaddr" type="text" class="formfld unknown" id="ipaddr" size="20" value="<?=htmlspecialchars($pconfig['ipaddr']);?>">
                    <br>
                        如果不输入IP地址，会从地址池中动态分配一个。</td>
                </tr>
                <tr> 
                  <td width="22%" valign="top" class="vncell">主机名</td>
                  <td width="78%" class="vtable"> 
                    <input name="hostname" type="text" class="formfld unknown" id="hostname" size="20" value="<?=htmlspecialchars($pconfig['hostname']);?>">
                    <br> <span class="vexpl">主机名，不带域部分。</span></td>
                </tr>				
                <tr> 
                  <td width="22%" valign="top" class="vncell">描述。</td>
                  <td width="78%" class="vtable"> 
                    <input name="descr" type="text" class="formfld unknown" id="descr" size="40" value="<?=htmlspecialchars($pconfig['descr']);?>"> 
                    <br> <span class="vexpl">您可以输入一些描述作为参考。</span></td>
                </tr>
                <tr> 
                  <td width="22%" valign="top">&nbsp;</td>
                  <td width="78%"> 
                    <input name="Submit" type="submit" class="formbtn" value="保存"> <input class="formbtn" type="button" value="取消" onclick="history.back()">
                    <?php if (isset($id) && $a_maps[$id]): ?>
                    <input name="id" type="hidden" value="<?=$id;?>">
                    <?php endif; ?>
                    <input name="if" type="hidden" value="<?=$if;?>"> 
                  </td>
                </tr>
              </table>
</form>
<?php include("fend.inc"); ?>
</body>
</html>
